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+/**
+ * @file    ws2812.h
+ * @author  Austin Glaser <austin.glaser@gmail.com>
+ * @brief   Interface to WS2812 LED driver
+ *
+ * Copyright (C) 2016 Austin Glaser
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ *
+ * @todo    Put in names and descriptions of variables which need to be defined to use this file
+ */
+
+#ifndef WS2812_H_
+#define WS2812_H_
+
+/**
+ * @defgroup WS2812 WS2812 Driver
+ * @{
+ *
+ * @brief   DMA-based WS2812 LED driver
+ *
+ * A driver for WS2812 LEDs
+ */
+
+/* --- PUBLIC DEPENDENCIES -------------------------------------------------- */
+
+// Standard
+#include <stdint.h>
+#include "color.h"
+
+/* --- PUBLIC MACROS -------------------------------------------------------- */
+
+/**
+ * @brief   Concatenates two symbols s1 and s2 exactly, without expanding either
+ *
+ * @param[in] s1:       The first symbol to concatenate
+ * @param[in] s2:       The second symbol to concatenate
+ *
+ * @return              A single symbol containing s1 and s2 concatenated without expansion
+ */
+#define CONCAT_SYMBOLS(s1, s2) s1##s2
+
+/**
+ * @brief  Concatenate the symbols s1 and s2, expanding both of them
+ *
+ * This is important because simply applying s1##s2 doesn't expand them if they're
+ * preprocessor tokens themselves
+ *
+ * @param[in] s1:       The first symbol to concatenate
+ * @param[in] s2:       The second symbol to concatenate
+ *
+ * @return              A single symbol containing s1 expanded followed by s2 expanded
+ */
+#define CONCAT_EXPANDED_SYMBOLS(s1, s2) CONCAT_SYMBOLS(s1, s2)
+
+/* --- PUBLIC CONSTANTS ----------------------------------------------------- */
+
+/**
+ * @brief   Return codes from ws2812 interface functions
+ */
+typedef enum {
+    WS2812_SUCCESS = 0x00, /**< Operation completeed successfully */
+    WS2812_LED_INVALID,    /**< Attempted to index an invalid LED (@ref WS2812_N_LEDS) */
+    MAX_WS2812_ERR,        /**< Total number of possible error codes */
+    WS2812_ERR_INVALID     /**< Invalid error value */
+} ws2812_err_t;
+
+/* --- PUBLIC FUNCTIONS ----------------------------------------------------- */
+
+/**
+ * @brief   Initialize the driver
+ *
+ * After this function is called, all necessary background tasks will be started.
+ * The frame is initially dark.
+ */
+void ws2812_init(void);
+
+/**
+ * @brief   Write the value of a single LED in the chain
+ *
+ * The color value is written to a frame buffer, and will not
+ * be updated until the next frame is written. Frames are written
+ * at the maximum possible speed -- the longest latency between a
+ * call to this function and the value being displayed is
+ * 1.25uS*(24*@ref WS2812_LED_N + 50)
+ *
+ * @param[in] led_number:           The index of the LED to be written. Must be strictly less than
+ *                                  @ref WS2812_N_LEDS
+ * @param[in] r:                    The red level of the LED
+ * @param[in] g:                    The green level of the LED
+ * @param[in] b:                    The blue level of the LED
+ *
+ * @retval WS2812_SUCCESS:          The write was successful
+ * @retval WS2812_LED_INVALID:      The write was to an invalid LED index
+ */
+ws2812_err_t ws2812_write_led(uint32_t led_number, uint8_t r, uint8_t g, uint8_t b);
+
+void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds);
+/** @} defgroup WS2812 */
+
+#endif  // ifndef WS2812_H_